The Leaning Tower of Pisa, known worldwide for its unintended tilt to one side, is the freestanding bell tower of the cathedral in the Italian city of Pisa. Work on the ground floor of the white marble campanile began on August 8, 1173.
Located in Philadelphia, Pennsylvania, the Liberty Bell is an iconic symbol of American independence. Upon the bell read the words "Proclaim LIBERTY throughout all the land unto all the inhabitants thereof." It weighs 2,080 pounds and is suspended from what is believed to be its original yoke, made of American elm.